Suppose a laboratory has a 26 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of polonium-210 occur in 276 days? How much polonium is in the sample 276 days later?

2; 6.5 g

3; 3.25 g

2; 1,794 g

2; 13 g

Find the taylor series for xex about x = 0. then integrate term-by-term and substitute to show that the series

Simplify 6 divided by square root of 3 plus 2

Pitcher A throws a baseball 90 mph and pitcher B throws a baseball 121 ft per second, which pitcher throws faster?

To buy the green and blue bikes would cost 1500$. to buy the green and red bikes would cost 750$. to buy all three bikes would cost 2000$. how much does each bike cost

The two-way table displays the hair color of the sophomore (So), junior (Jr), and senior (Sr) classes at West Coast High School, represented by percents in the table. A 5-column table has 3 rows. The first column has entries Blonde, brown, total.

Y = 375 (.078) t growth or decay?

If I have 18eggs and use 1/4 of them to make a cake how many eggs have I used?

If you double a number and then add 1616 , you get two fifths 2 5 of the original number. what is the original number?

B. Contains (-3, - 2) and has slope 3

Mei ling will take out a student loan to pay the additional cost. the anual interest rate is 6.25%. how much will she owe in interest at the end of one year if she does not repay the loan.